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UIView+Parallax Category For Easy Parallax and Shadow Movement
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// | |
// UIView+Parallax.h | |
// Orbosphere | |
// | |
// Created by Julian Hays on 4/22/14. | |
// Inspired By Ash Furrow - http://www.teehanlax.com/blog/introduction-to-uimotioneffect/ - September 19,2013 | |
// and Michael Burford - http://michael.burford.net/2013/10/ios7-parallax-shadows.html - Thursday, October 10, 2013 | |
// | |
// | |
#import <UIKit/UIKit.h> | |
@interface UIView (Parallax) | |
- (void)addShadowing; | |
- (void)addShadowParallaxMotionEffect:(CGFloat)amount; | |
- (void)addParallaxMotionEffect:(CGFloat)amount; | |
@end |
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// | |
// UIView+Parallax.m | |
// Orbosphere | |
// | |
// Created by Julian Hays on 4/22/14. | |
// Inspired By Ash Furrow - http://www.teehanlax.com/blog/introduction-to-uimotioneffect/ - September 19,2013 | |
// and Michael Burford - http://michael.burford.net/2013/10/ios7-parallax-shadows.html - Thursday, October 10, 2013 | |
// | |
// | |
#import "UIView+Parallax.h" | |
@implementation UIView (Parallax) | |
- (void)addShadowing { | |
[self.layer setShadowColor:[UIColor blackColor].CGColor]; | |
[self.layer setShadowOpacity:0.4]; | |
[self.layer setShadowRadius:3.0]; | |
[self.layer setShadowOffset:CGSizeMake(0, 2)]; | |
} | |
- (void)addShadowParallaxMotionEffect:(CGFloat)amount { | |
amount = 10.0*amount; | |
UIInterpolatingMotionEffect *motionX = [[UIInterpolatingMotionEffect alloc] initWithKeyPath:@"layer.shadowOffset.width" type:UIInterpolatingMotionEffectTypeTiltAlongHorizontalAxis]; | |
[motionX setMaximumRelativeValue:@(amount)]; | |
[motionX setMinimumRelativeValue:@(-amount)]; | |
UIInterpolatingMotionEffect *motionY = [[UIInterpolatingMotionEffect alloc] initWithKeyPath:@"layer.shadowOffset.height" type:UIInterpolatingMotionEffectTypeTiltAlongVerticalAxis]; | |
[motionY setMaximumRelativeValue:@(amount)]; | |
[motionY setMinimumRelativeValue:@(-amount)]; | |
UIMotionEffectGroup *group = [[UIMotionEffectGroup alloc] init]; | |
group.motionEffects = @[motionX, motionY]; | |
[self addMotionEffect:group]; | |
} | |
- (void)addParallaxMotionEffect:(CGFloat)amount | |
{ | |
amount = 10.0*amount; | |
UIInterpolatingMotionEffect *verticalMotionEffect = [[UIInterpolatingMotionEffect alloc] initWithKeyPath:@"center.y" type:UIInterpolatingMotionEffectTypeTiltAlongVerticalAxis]; | |
verticalMotionEffect.minimumRelativeValue = @(-amount); | |
verticalMotionEffect.maximumRelativeValue = @(amount); | |
UIInterpolatingMotionEffect *horizontalMotionEffect = [[UIInterpolatingMotionEffect alloc] initWithKeyPath:@"center.x" type:UIInterpolatingMotionEffectTypeTiltAlongHorizontalAxis]; | |
horizontalMotionEffect.minimumRelativeValue = @(-amount); | |
horizontalMotionEffect.maximumRelativeValue = @(amount); | |
UIMotionEffectGroup *group = [UIMotionEffectGroup new]; | |
group.motionEffects = @[horizontalMotionEffect, verticalMotionEffect]; | |
[self addMotionEffect:group]; | |
} | |
@end |
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